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I just want a CPU freq to power chart, so I know how Intel/AMD are pushing TDP and at what freq things start getting exponential. It would be interesting to see
by nwmcsween 4y ago
I just want a CPU freq to power chart, so I know how Intel/AMD are pushing TDP and at what freq things start getting exponential. It would be interesting to see what is considered "normal".
- Scene_Cast2 4y agoThere was a test done on 12th gen Intel (12900 variant IIRC, but my memory is hazy). They limited TDP incrementally down to single-digit numbers, the efficiency kept increasing the farther down you go. My takeaway was that there isn't a "normal" or "optimum".
- nwmcsween 4y agoFreq/Power will be linear to a point, it's possible the point differs on different processors but maybe not.
- NathanielK 4y agoPresumably that's when you hit the minimum voltage the CPU is allowed to run at. There's still a few other gotchas though. As CPU frequency goes down, it waits less cycles for RAM. Practically it's a bit of a copout since keeping your RAM at high clocks/voltages doesn't effect more CPU TDP but does use more power. It might explain some of the irregularities in testing at least.